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Finding the Fourth Proportional to 250,312, 345,430.56 and 149,710

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Solution

The fourth proportional to 250,312, 345,430.56 and 149,710 is: 206,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,312 : 345,430.56 = 149,710 : x
  2. Step 2: Convert to fraction form
    250,312/345,430.56 = 149,710/x
  3. Step 3: Cross multiply
    250,312x = 345,430.56 × 149,710
  4. Step 4: Simplify right side
    250,312x = 51,714,409,137.60
  5. Step 5: Solve for x
    x = 51,714,409,137.60/250,312
  6. Step 6: Final answer
    x = 206,599.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.